Question

The rate of a first-order reaction is
0.04 mol l-15-1 at 10 seconds and
0.03 mol (-19-1 at 20 seconds after initiation of the
reaction. The half-life period of the reaction is :
(1) 24.1 s
(2) 34.1 s
(3) 44.1 s
(4) 54.1 s​

Answer 1

Answer:

this questions answered is (2)

Answer 2

Answer:

This question's answer is (2)